Home / 436,667.12-655,000.64-121,124.04

Finding the Fourth Proportional to 436,667.12, 655,000.64 and 121,124.04

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Solution

The fourth proportional to 436,667.12, 655,000.64 and 121,124.04 is: 181,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,667.12 : 655,000.64 = 121,124.04 : x
  2. Step 2: Convert to fraction form
    436,667.12/655,000.64 = 121,124.04/x
  3. Step 3: Cross multiply
    436,667.12x = 655,000.64 × 121,124.04
  4. Step 4: Simplify right side
    436,667.12x = 79,336,323,719.39
  5. Step 5: Solve for x
    x = 79,336,323,719.39/436,667.12
  6. Step 6: Final answer
    x = 181,686.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.